发明名称 |
X-Ray diagnostic system comprising means for the fixed specification of exposure time, x-ray tube voltage, and mAs-product |
摘要 |
In an exemplary embodiment, a control loop for the x-ray tube current is present which adjusts the x-ray tube current to a value which is a function of the exposure time and the selected mAs-product. In order that deviations of the x-ray tube voltage from a desired value can be controlled via the x-ray tube current, but that the mean value of the x-ray tube current can nevertheless be kept constant, a phase angle control device, arranged in the primary circuit of the high voltage transformer, can be present as the regulating unit for the mean value of the x-ray tube current. As controller for the x-ray tube voltage, a circuit for the adjustment of the filament current of the x-ray tube can be provided.
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申请公布号 |
US4377748(A) |
申请公布日期 |
1983.03.22 |
申请号 |
US19800142703 |
申请日期 |
1980.04.22 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
AICHINGER, HORST;SEIFERT, GERD |
分类号 |
H05G1/34;H05G1/46;(IPC1-7):H05G1/34 |
主分类号 |
H05G1/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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